php-src/ext/gd/tests/bug79068.phpt

--TEST--
Bug #79068 (gdTransformAffineCopy() changes interpolation method)
--EXTENSIONS--
gd
--FILE--
<?php
$src = imagecreatetruecolor(100, 100);
imagefilledrectangle($src, 0, 0, 99, 99, 0xffffff);
imageline($src, 10, 10, 90, 90, 0x000000);
imagesetinterpolation($src, IMG_BSPLINE);
imageaffine($src, [1, 1, 1, 1, 1, 1]);
var_dump(imagegetinterpolation($src) === IMG_BSPLINE);
?>
--EXPECT--
bool(true)
Fix #79068: gdTransformAffineCopy() changes interpolation method We port <https://github.com/libgd/libgd/commit/9088591eae437358ee5b929adf82865e37e3001e>. 2020-01-06 09:33:47 +00:00			`--TEST--`
			`Bug #79068 (gdTransformAffineCopy() changes interpolation method)`
Migrate skip checks to --EXTENSIONS-- for ext/gd Cf. PR #6787. Closes GH-6994. 2021-05-16 20:51:09 +00:00			`--EXTENSIONS--`
			`gd`
Fix #79068: gdTransformAffineCopy() changes interpolation method We port <https://github.com/libgd/libgd/commit/9088591eae437358ee5b929adf82865e37e3001e>. 2020-01-06 09:33:47 +00:00			`--FILE--`
			`<?php`
			`$src = imagecreatetruecolor(100, 100);`
			`imagefilledrectangle($src, 0, 0, 99, 99, 0xffffff);`
			`imageline($src, 10, 10, 90, 90, 0x000000);`
			`imagesetinterpolation($src, IMG_BSPLINE);`
			`imageaffine($src, [1, 1, 1, 1, 1, 1]);`
Add imagegetinterpolation() While `imagesetinterpolation()` is available as of PHP 5.5.0, there is no according getter function, so users would have to track the current interpolation method manually. To remedy this, we introduce `imagegetinterpolation()` as thin wrapper for `gdImageGetInterpolationMethod()` (which has been introduced with libgd 2.1.1), and use `im->interpolation_id` as fallback for older libgd. Since our bundled libgd does not yet have this function, we add it. We also simplify the recently introduced bug79068.phpt, where it is sufficient to check that the interpolation method has not been changed. 2020-01-06 11:49:07 +00:00			`var_dump(imagegetinterpolation($src) === IMG_BSPLINE);`
Fix #79068: gdTransformAffineCopy() changes interpolation method We port <https://github.com/libgd/libgd/commit/9088591eae437358ee5b929adf82865e37e3001e>. 2020-01-06 09:33:47 +00:00			`?>`
			`--EXPECT--`
Add imagegetinterpolation() While `imagesetinterpolation()` is available as of PHP 5.5.0, there is no according getter function, so users would have to track the current interpolation method manually. To remedy this, we introduce `imagegetinterpolation()` as thin wrapper for `gdImageGetInterpolationMethod()` (which has been introduced with libgd 2.1.1), and use `im->interpolation_id` as fallback for older libgd. Since our bundled libgd does not yet have this function, we add it. We also simplify the recently introduced bug79068.phpt, where it is sufficient to check that the interpolation method has not been changed. 2020-01-06 11:49:07 +00:00			`bool(true)`